'use strict';
const db = uniCloud.database()
const dbCmd = db.command


exports.main = async (event, context) => {
	//event为客户端上传的参数
	console.log('event : ', event)
	const db = uniCloud.database();
	
	const res = await db.collection('test-role')
	  .update({ mer_id: '' })
	//返回数据给客户端
	return res 
};
